mariadb/myisam/mi_scan.c
kent@mysql.com/kent-amd64.(none) 6523aca729 my_strtoll10-x86.s:
Corrected spelling in copyright text
Makefile.am:
  Don't update the files from BitKeeper
Many files:
  Removed "MySQL Finland AB & TCX DataKonsult AB" from copyright header
  Adjusted year(s) in copyright header 
Many files:
  Added GPL copyright text
Removed files:
  Docs/Support/colspec-fix.pl
  Docs/Support/docbook-fixup.pl
  Docs/Support/docbook-prefix.pl
  Docs/Support/docbook-split
  Docs/Support/make-docbook
  Docs/Support/make-makefile
  Docs/Support/test-make-manual
  Docs/Support/test-make-manual-de
  Docs/Support/xwf
2006-12-31 01:02:27 +01:00

45 lines
1.5 KiB
C

/* Copyright (C) 2000-2001 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/* Read through all rows sequntially */
#include "myisamdef.h"
int mi_scan_init(register MI_INFO *info)
{
DBUG_ENTER("mi_scan_init");
info->nextpos=info->s->pack.header_length; /* Read first record */
info->lastinx= -1; /* Can't forward or backward */
if (info->opt_flag & WRITE_CACHE_USED && flush_io_cache(&info->rec_cache))
DBUG_RETURN(my_errno);
DBUG_RETURN(0);
}
/*
Read a row based on position.
If filepos= HA_OFFSET_ERROR then read next row
Return values
Returns one of following values:
0 = Ok.
HA_ERR_END_OF_FILE = EOF.
*/
int mi_scan(MI_INFO *info, byte *buf)
{
DBUG_ENTER("mi_scan");
/* Init all but update-flag */
info->update&= (HA_STATE_CHANGED | HA_STATE_ROW_CHANGED);
DBUG_RETURN ((*info->s->read_rnd)(info,buf,info->nextpos,1));
}